As a complete beginner, I have just started working through "Jumping into C++". I am at the section on appending strings. The tutorial mentions the getline function but I can not seem to get it to activate. There is no mention of any other inclusions.
Code:
#include <iostream>
#include <string>

using namespace std;

int main()
{
    string user_first_name;
    string user_surname;
    string title;
    string address;

    double x = 0;
    double y = 0;
    double z = 0;

    cout << "Before we start, why not tell me your  first name : ";
    cin >> user_first_name;
    cout << "Ok, for the sake of formalities, what is your surname? : ";
    cin >> user_surname;
    cout << "And is that Mr, Mrs or Ms? : ";
    cin >> title;
    string user_full_name = title + " " + user_first_name + " " + user_surname;
    cout << "And what is your street address? : ";
    getline ( cin, address );
    cout << "Hi " << user_first_name << " nice to meet you.\n";
I note that the getline function color remains black while other functions are green. I presume this means that Codeblocks has not associated it with any of the listed header files. Has the tutorial omitted this detail?